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- brevifolia Peck Picea mariana var. brevifolia (Peck) Rehder Picea nigra Aiton Pinus nigra Treatment appears in FNA Volume 2. Trees to 25m (often shrublike);4 KB (332 words) - 22:24, 20 February 2024
- Pinus contorta, Pinus coulteri, Pinus echinata, Pinus edulis, Pinus elliottii, Pinus engelmannii, Pinus flexilis, Pinus glabra, Pinus jeffreyi, Pinus lambertiana26 KB (1,313 words) - 21:22, 5 November 2020
- edge of the Canadian Shield. In addition to Picea spp., Pinus contorta var. latifolia and Pinus banksiana are important. On the Canadian Shield (zone 4)133 KB (20,036 words) - 18:33, 13 February 2019
- principally pines (Pinus spp.). The principal hardwoods planted on a commercial scale are cottonwood (Populus spp.) and black walnut (Juglans nigra). Much of the20 KB (2,752 words) - 23:04, 13 February 2019
- are from the rhizome system of a single original plant. In the jack pine (Pinus banksiana) forest of northern Michigan and Wisconsin, the rhizomatous brackens69 KB (10,503 words) - 23:43, 13 February 2019